CVE-2021-39793

HighCVSS 7.8/10Known exploited (CISA KEV)Last modified Jun 17, 2026

Description

In kbase_jd_user_buf_pin_pages of mali_kbase_mem.c, there is a possible out of bounds write due to a logic error in the code. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-210470189References: N/A

Metrics

CVSS 3.1 7.8/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

Affected software

No affected versions have been published.

Timeline

Published
Mar 16, 2022
Last modified
Jun 17, 2026
Added to CISA KEV
Apr 11, 2022
NVD status
Analyzed

Related CVEs from 2021

CVE-2021-397947.8In broadcastPortInfo of AdbService.java, there is a possible way for apps to run code as the shell user, if wireless debugging is enabled, dCVE-2021-397967.3In HarmfulAppWarningActivity of HarmfulAppWarningActivity.java, there is a possible way to trick victim to install harmful app due to a tapjCVE-2021-397977.8In several functions of of LauncherApps.java, there is a possible escalation of privilege due to a logic error in the code. This could lead CVE-2021-397987.8In Bitmap_createFromParcel of Bitmap.cpp, there is a possible arbitrary code execution due to a missing bounds check. This could lead to locCVE-2021-397997.8In AttributionSource of AttributionSource.java, there is a possible permission bypass due to improper input validation. This could lead to lCVE-2021-39807.5elgg is vulnerable to Exposure of Private Personal Information to an Unauthorized ActorCVE-2021-398005.5In ion_ioctl of ion-ioctl.c, there is a possible way to leak kernel head data due to a use after free. This could lead to local information CVE-2021-398017.8In ion_ioctl of ion-ioctl.c, there is a possible use after free due to improper locking. This could lead to local escalation of privilege wiCVE-2021-398027.8In change_pte_range of mprotect.c , there is a possible way to make a shared mmap writable due to a permissions bypass. This could lead to lCVE-2021-398036.5In ~Impl of C2AllocatorIon.cpp, there is a possible out of bounds read due to a use after free. This could lead to remote information discloCVE-2021-398046.5In reinit of HeifDecoderImpl.cpp, there is a possible crash due to a missing null check. This could lead to remote persistent denial of servCVE-2021-398056.5In l2cble_process_sig_cmd of l2c_ble.cc, there is a possible out of bounds read due to a missing bounds check. This could lead to remote inf
CVE-2021-39793: High severity, CVSS 7.8 | Vulnix